1. ferric oxide

noun. A red oxide of iron.
Synonyms
hemosiderin rusting haemosiderin oxide rust
Antonyms
achromatic

2. ferric

adjective. Of or relating to or containing iron.
Synonyms
ferrous
Etymology
ferric (English)
ferricus (Latin)
ferrum (Latin)

3. oxide

noun. (ˈɑːkˌsaɪd) Any compound of oxygen with another element or a radical.
Synonyms
minium silicon dioxide calcium oxide zirconia titanic oxide compound sulfur oxide philosophers' wool philosopher's wool dioxide titanium dioxide calx peroxide fluxing lime burnt lime zirconium dioxide titanium oxide quicklime tetroxide pentoxide calcined lime nitrogen oxide titania red lead sulphur oxide ferric oxide superoxide chemical compound unslaked lime monoxide silicon oxide copper oxide zirconium oxide silica flowers of zinc trioxide zinc oxide lime
Antonyms
smooth rough simple decrease disintegrate
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